I mean, he's roughly the same size as Mezz, just a little shorter. Using real-world measurements rather than proportions is always a bit fraught with stuff like this, but vaguely I put Mezz in the range of something like 4 feet (to the head, not to the ears). Scratch a little shorter. Officially, Mezz is about chest-height to the hyenas, the boars are a bit shorter (though Diezel is fucking massive). This flexes a bit as needed for a given scene though. But yeah, that would make the hyenas somewhere around 5/5.5 feet, Diezel even taller and WIDE. They're all a little more short and squat in proportions ("heads" high) than normal humans though, because IMHO that looks more visually appealing and cartoon-like.